Couttolenc Valdés, Sergio

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    Testing methods for current-mode integrated circuits under the Very Low Cost Tester (VLCT) and LabView® test platform
    (2004) Couttolenc Valdés, Sergio; Palomera García, Rogelio; College of Engineering; Jimenez Cedeño, Manuel; Beauchamp, Gerson; Department of Electrical and Computer Engineering; Arocha Ordoñez, Marco A.
    Test software is widely used to perform electrical testing regardless of the hardware platform. From the entire hardware platform, the Very Low Cost Testers (VLCT) are a practical low cost options for manufacturing and education purposes, because they are custom-made. From the Software platform, LabView® (National Instruments Company) is presently one of most used software for testing and measurements in the world. In spite of the existence of test algorithms and methods which are inescapable steps of the electrical testing art, there is a lack of algorithms focused in testing current-mode Circuits using VLCT and LabView. Current-mode circuits are becoming the more important players in the design of low power – low voltage circuits, thereby making necessary to have such algorithms available. The Purpose of this Project is to generate algorithms and methods using the VLCT donated by Texas Instruments (TI) and LabView® in order to perform electrical testing of Current-Mode Circuits. The most useful formula to solve complex problems is by applying the proverb: “divide and conquer”. Following this philosophy, a basic and small circuit that holds all the principles of current-mode circuits is the best option to develop algorithms and programs. In consequence, the current project framework comprises only the basic current-mirrors, because with short algorithms and programs is possible to create larger programs for complex circuits. Only DC stimuli will be used. The AC stimuli are out of the scope of this project, it should be proposed for future research. The contributions of this project are: · Procedures and algorithms for testing basic current-mirrors using VLCT. · Integration between VLCT and LabView using a virtual instrument. · Test programs in Pascal programming language for VLCT that can be used to create more complex programs. · Example of Pascal programming language for D.O.S. that can be used to compile and create an application or executable file and that can be exported to VLCT Pascal programming platform with minor changes. These changes will be exposed later in this text.